BibTeX

@ARTICLE{iumj1000,
    author = "W. Pfeffer",
     title = "Comparing variations of charges",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 45,
      year = 1996,
     issue = 3,
     pages = "643--654",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj1000}{article}{
     author = {Pfeffer, W.},
      title = {Comparing variations of charges},
    journal = {Indiana Univ. Math. J.},
     volume = {45},
       year = {1996},
     number = {3},
      pages = {643 \ndash 654},
}